Enhanced coercivity of half-metallic La 0.7Sr 0.3MnO 3 by Ru substitution under in-plane uniaxial strain

K. Shigematsu, A. Chikamatsu, Y. Hirose, T. Fukumura, T. Hasegawa

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6 Citations (Scopus)

Abstract

In this paper, La 0.7Sr 0.3Mn 1-yRu yO 3 (y = 0, 0.05, and 0.1) (001) epitaxial thin films were grown on NdGaO 3 (110) substrates with in-plane uniaxial strain, and the coercivity (H c) and in-plane magnetic anisotropy were evaluated. The coercivity of the epitaxial film grown on the NdGaO 3 substrate, in which the easy and hard axes correspond to the NdGaO 3 [1 1 0] and NdGaO 3 001 directions, respectively, was significantly increased in comparison with a corresponding film grown on the SrTiO 3 (001) substrate. With increasing Ru content, the H c along NdGaO 3 [1 1 0] was almost twice as large as that along NdGaO 3 001, due to enhanced antiferromagnetic coupling by Ru substitution under the uniaxial strain.

Original languageEnglish
Article number07B102
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
Publication statusPublished - 2012 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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